Radiant|Lab Grown|IGI

0.51ct H SI2 Radiant Lab Grown Diamond

VG • H/SI2 • IGI LG539229152

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG539229152

Diamond specifications and retailer prices

From $220 NZD
$124 USD
As of October 30, 2026
Save $2,063 NZD (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,283 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG539229152 or 539229152. Listed at 13 retailers as of October 30, 2026, with prices from $220 to $2,283, a $2,063 spread on the same certified stone. MOH London lists it at $2,283. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle31°
OriginLab Grown
Grading LabIGI
CertificateIGI LG539229152
Dimensions5.26 × 3.87 × 2.73 mm
L/W Ratio1.36
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.26 mm3.87 mm0.51 ctH / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG539229152
Side View
Table 62.0%Crown 38°Girdle: THK-VTKPavilion 31°Culet: NoneDepth 70.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,283 NZD|Low: $211 NZD|High: $2,310 NZD|Avg: $629 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 8$220 NZD
Retailer 4$247 NZD
Retailer 12$255 NZD
Retailer 9$291 NZD
Retailer 13$291 NZD
Retailer 2$497 NZD
Retailer 10$523 NZD
Retailer 5$545 NZD
Retailer 6$660 NZD
Retailer 3$678 NZD
Retailer 11$878 NZD
Retailer 7$928 NZD
MOH London$2,283 NZD

19 data points across 13 retailers

13 retailers$220 NZD to $2,283 NZD

B+
Cheapest Retailer
-
$220 NZD
$124 USD
B+
Retailer 2
-
$247 NZD
$139 USD
View
Final sale: no returns
B+
Retailer 3
-
$255 NZD
$144 USD
View
Retailer 4
-
$291 NZD
$164 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$291 NZD
$164 USD
View
B+
Retailer 6
-
$497 NZD
$280 USD
View
B+
Retailer 7
-
$523 NZD
$295 USD
View
B+
Retailer 8
-
$545 NZD
HK$2,400 HKD
View
B
Retailer 9
-
$660 NZD
£293 GBP
View
B
Retailer 10
-
$678 NZD
$382 USD
View
B
Retailer 11
-
$878 NZD
$495 USD
View
B
Retailer 12
-
$928 NZD
$523 USD
View
Most Expensive
C
MOH London
LG539229152 · Nov 1
$2,283 NZD
£1,013 GBP
View
12 more retailers have this diamond
Prices start from $220 NZDSave up to $2,063 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
0.51ct Radiant
$220 NZD